Thanks so much for all the fast and detailed answers! Unfortunately, I'm still unsure. But here's some more info, in the hope that one of you will see what I need.
Go to each one and see which is the 667mhz and which is the 800mhz.
If you have the current iMac you want the 800mhz NOT the 667.
According to About this Mac, I have 800 MHz Ram. So from this, I suppose I need the MB323LL.
The MB323LL/A is the new one that was updated on April, 28, 2008. If you got yours before that you need the other (667)
I used some of the info you guys gave me, and determined that my iMac is a mid-2007 model, with EMC 2133 and model nr A1224. So from that, I'd think the opposite, that I'd need the non-MB323LL RAM.
You can always go to
www.crucial.com and run the program they have that will automatically show you the RAM that goes with your computer.
Not really
😛. That scanner tool has never worked on any of my Macs. (But it was the first thing I tried, even so.)
Correct me if I'm wrong, but I thought the August 2007 revision iMacs could handle 800mhz RAM?
If you had an August 2007 - April 08 iMac, couldn't you go for either?
Boy, that would sure make it easy - I wouldn't have to worry about making a mistake.
To find the number above real quick ... use
http://support.apple.com/specs/#imac and click on the iMac you thing it is the MB323LL/A show as the 2008 iMac
But generally looking at About this Mac > More Info > Model Identifier
and matching it with the machines here
http://developer.apple.com/documentation/HardwareDrivers/AppleHardware-date.html
and then going to RAM will get you here
http://developer.apple.com/document...eptual/HWTech_RAM/Introduction/RAM_intro.html
Basically just click on the
RAM Expansion Product-Specific Details > iMac
and it lists all the machines, and what RAM they use.
According to the first link you give, this is the info for my Mac:
So here, I would think I CAN'T use the 800 MHz after all, even though that's what it says in About my Mac.
Can anyone see what I need?
😱